NEW Battery For Dell Precision M6400 M6500 M4400 M2400 8M039 C565C DW842 7800mAh
312-0873 8M039 C565C DW842. For Dell Precision M6500. For Dell Precision M6400. Capacity: 7800mAh. For Dell Precision M4400. For Dell Precision M2400. Step 3: Disconnect the cable connected to the battery and then take out the battery.